From: David Ahern <dsahern@gmail.com>
To: Ingo Molnar <mingo@kernel.org>, Pekka Enberg <penberg@kernel.org>
Cc: linux-kernel@vger.kernel.org, Ingo Molnar <mingo@redhat.com>,
Arnaldo Carvalho de Melo <acme@ghostprotocols.net>
Subject: Re: [PATCH] perf trace: Simplify '--summary' output
Date: Tue, 12 Nov 2013 14:36:15 -0700 [thread overview]
Message-ID: <52829F4F.6070800@gmail.com> (raw)
In-Reply-To: <20131112213334.GF25913@gmail.com>
On 11/12/13, 2:33 PM, Ingo Molnar wrote:
>> > Summary of events:
>> >
>> > dbus-daemon (555), 10 events, 0.0%, 0.000 msec
>> >
>> > msec/call
>> > syscall calls min avg max stddev
>> > --------------- -------- -------- -------- -------- ------
>> > sendmsg 2 0.002 0.005 0.008 55.00
>> > recvmsg 2 0.002 0.003 0.005 44.00
>> > epoll_wait 1 0.000 0.000 0.000 0.00
> In what units is stddev? Percentage? If yes then it might be useful to
> output it as %. [and probably to restrict precision to a single digit,
> standard deviations are rarely more accurate than 0.1%.]
>
%. That was dropped in the recent output change.
David
next prev parent reply other threads:[~2013-11-12 21:36 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-11-12 14:42 [PATCH] perf trace: Simplify '--summary' output Pekka Enberg
2013-11-12 21:33 ` Ingo Molnar
2013-11-12 21:36 ` David Ahern [this message]
2013-11-12 21:38 ` Pekka Enberg
2013-11-12 21:42 ` David Ahern
2013-11-12 21:50 ` Ingo Molnar
2013-11-12 21:40 ` Ingo Molnar
2013-11-13 6:57 ` Pekka Enberg
2013-11-13 11:14 ` Ingo Molnar
2013-11-12 21:56 ` [tip:perf/urgent] " tip-bot for Pekka Enberg
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